Optimal frequency for magnetic resonant wireless power transfer in conducting medium

Abstract In this article, we investigated the efficiency of a magnetic resonant wireless power transfer (MR-WPT) in conducting medium and found out an optimal frequency for designing the system. In conducting environment, the eddy current loss is generated by the high-frequency alternating currents...

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Autores principales:	Thanh Son Pham, Thao Duy Nguyen, Bui Son Tung, Bui Xuan Khuyen, Thu Trang Hoang, Quang Minh Ngo, Le Thi Hong Hiep, Vu Dinh Lam
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/acc03fffc5ba4bcf9fe2450928cd1742
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spelling	oai:doaj.org-article:acc03fffc5ba4bcf9fe2450928cd17422021-12-02T15:15:23ZOptimal frequency for magnetic resonant wireless power transfer in conducting medium10.1038/s41598-021-98153-y2045-2322https://doaj.org/article/acc03fffc5ba4bcf9fe2450928cd17422021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98153-yhttps://doaj.org/toc/2045-2322Abstract In this article, we investigated the efficiency of a magnetic resonant wireless power transfer (MR-WPT) in conducting medium and found out an optimal frequency for designing the system. In conducting environment, the eddy current loss is generated by the high-frequency alternating currents in the coils. It is manifested by increased radiation resistance of resonator coil leads to decrease the quality factor (Q-factor), which reduces the wireless power transfer (WPT) efficiency in conducting medium. The Q-factor of the resonator coil strongly depending on the conductivity, frequency, and thickness of conducting block. Two MR-WPT systems operating at 10.0 MHz and 20.0 MHz are implemented to study the effect of conducting medium on efficiency. The achieved results indicated that the 20.0 MHz system has higher efficiency at a conductivity smaller than 6.0 S/m. However, at the larger conductivity, the 10.0 MHz system is more efficient. The results provide a method to determine the optimal frequency of a WPT system operating in the conducting medium with various conductivities and thickness blocks. This method can be used to design MR-WPT systems in numerous situations, such as autonomous underwater vehicles and medical implants.Thanh Son PhamThao Duy NguyenBui Son TungBui Xuan KhuyenThu Trang HoangQuang Minh NgoLe Thi Hong HiepVu Dinh LamNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Thanh Son Pham Thao Duy Nguyen Bui Son Tung Bui Xuan Khuyen Thu Trang Hoang Quang Minh Ngo Le Thi Hong Hiep Vu Dinh Lam Optimal frequency for magnetic resonant wireless power transfer in conducting medium
description	Abstract In this article, we investigated the efficiency of a magnetic resonant wireless power transfer (MR-WPT) in conducting medium and found out an optimal frequency for designing the system. In conducting environment, the eddy current loss is generated by the high-frequency alternating currents in the coils. It is manifested by increased radiation resistance of resonator coil leads to decrease the quality factor (Q-factor), which reduces the wireless power transfer (WPT) efficiency in conducting medium. The Q-factor of the resonator coil strongly depending on the conductivity, frequency, and thickness of conducting block. Two MR-WPT systems operating at 10.0 MHz and 20.0 MHz are implemented to study the effect of conducting medium on efficiency. The achieved results indicated that the 20.0 MHz system has higher efficiency at a conductivity smaller than 6.0 S/m. However, at the larger conductivity, the 10.0 MHz system is more efficient. The results provide a method to determine the optimal frequency of a WPT system operating in the conducting medium with various conductivities and thickness blocks. This method can be used to design MR-WPT systems in numerous situations, such as autonomous underwater vehicles and medical implants.
format	article
author	Thanh Son Pham Thao Duy Nguyen Bui Son Tung Bui Xuan Khuyen Thu Trang Hoang Quang Minh Ngo Le Thi Hong Hiep Vu Dinh Lam
author_facet	Thanh Son Pham Thao Duy Nguyen Bui Son Tung Bui Xuan Khuyen Thu Trang Hoang Quang Minh Ngo Le Thi Hong Hiep Vu Dinh Lam
author_sort	Thanh Son Pham
title	Optimal frequency for magnetic resonant wireless power transfer in conducting medium
title_short	Optimal frequency for magnetic resonant wireless power transfer in conducting medium
title_full	Optimal frequency for magnetic resonant wireless power transfer in conducting medium
title_fullStr	Optimal frequency for magnetic resonant wireless power transfer in conducting medium
title_full_unstemmed	Optimal frequency for magnetic resonant wireless power transfer in conducting medium
title_sort	optimal frequency for magnetic resonant wireless power transfer in conducting medium
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/acc03fffc5ba4bcf9fe2450928cd1742
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Optimal frequency for magnetic resonant wireless power transfer in conducting medium

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